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Design by contract and relational interface theories are powerful for specifying component-based systems. We extend these theories with real-time properties so that our technique can model component-based real-time systems. In addition, we use linear temporal logic (LTL) for specifying the invariant properties of contracts. To specify the interaction between methods in a component, and the interaction...
This paper focuses on a possible evolution of the control architectures suitable for Integrated Power Systems in modern all-electric ships. In control systems there is a major trend in using information and telecommunication technology as general real-time operating systems and standard communication protocols. This trend leads a standardization at software and communication protocol level that is...
Internet of things (IoT) is technology that connected anything and everything to the Internet. IoT is the newest technology rapidly widen in its usage. This technology brings new products such as disaster monitoring. Flood disaster is the main concern in Malaysia because every year there are flood occurred. We can use this technology to do monitoring activity that people are not able to do it in 24...
A Matlab Graphical User Interface (GUI) to help monitor the human gait in real time, and to enable to better understand the information of the used Inertial Measurement Units (IMUs) system is here presented. The interface not only improved the speed of data processing, but also facilitated the interaction between the user and the system, providing a clearer change of variables and information exchange...
A Wireless Sensor Network (WSN) is a group of specialized sensors with a communications infrastructure for monitoring and recording conditions at diverse locations. In WSN's to access the real time data from the sensor nodes a proper user authentication technique is required before allowing the users to access the data. In 2015 A.K. Das has proposed a user authentication technique with three factors...
To reduce the amount of CO2 produced from the personal cars in the world, the parking lot guidance systems are considered to be the solution in shopping malls or department stores in many countries. However, most of the current parking lot systems are located in the parking area of each shopping mall and they cannot show the parking lots information for the driver that are driving on the road. So,...
An automotive network needs to accumulate as much data as possible during motion to function in real-time, so that the system can respond to external influences accordingly. All kinds of situations regarding the state of the vehicle and its surroundings must be taken into account. To realize such a scenario many sensors, cameras and further input/output devices are essential to gather the required...
Lacking better methodology is one main factor that prevents remote healthcare application development using wearable sensors. Sensor devices and data heterogeneity are two additional factors. Integrating devices is a challenge due to lack of interoperability between APIs, protocols and their data formats, despite they relate to same device type. ANT+, a proprietary protocol, strengthens the goals...
Now a day's monitoring the water quality is a key essential need to analyze locality of water condition in terms of its physical, and chemical characteristics. Since traditional water quality monitoring system are inflexible to adapt sudden changes promptly at a long distance as well as its time consuming process and difficult task to get values of water parameter in real time operation. To overcome...
We investigate the co-design of a scheduler and controller for feedback control over wireless industrial hybrid protocol networks. These hybrid protocols incorporate possibilities for both contention-free and contention-based medium access to support real-time requirements and intermittent communications, respectively. We focus in particular on the possibilities and limitations of feedback control...
In the recent decades, Internet of Things (IoT) is becoming much more popular than ever. The sensors in IoT are becoming heterogeneous and abundant. It is necessary to implement a middleware platform to deal with the tremendous growth in the number and variety of sensors. In this paper, we design and implement a modularized and dynamic platform based on OSGI framework to deal with the vast heterogeneous...
Industrial Control Systems (ICS) must provide mission assurance for critical infrastructures by providing real-time situational awareness of cyber attacks directed against energy systems. Operators need to understand the progress, extent and severity of a cyber intrusion as it unfolds. Only if utility operators are provided with a way to understand how their systems are being attacked and what is...
A 500 kg payload 6 DOF (Degrees of Freedom) shake table has been designed and developed indigenously in Refuelling Technology Division, BARC. The Shake Table consists of 8 numbers of servo hydraulic actuators out of which four are vertical actuators and four are horizontal actuators. Four double Actuator Controller with dual CAN bus interfaces (DACCI) [1] are developed to control movement of servo...
Energy consumption is major issue in any type of Wireless Sensor Network (WSN) application. The main concern of this paper is how to increase the lifetime of network in WSN application. In any WSN application, data is measured and the same is sent to the particular destination. So each node is associated with sensors and battery, the lifetime of each node is determined by battery. One of the major...
As underwater acoustic network technologies become relatively mature, several protocol stack frameworks have been proposed and implemented. However, it is still an open problem to evaluate protocol stack frameworks. To evaluate their performance and help users to choose a proper solution, we propose several performance criteria, namely, timing accuracy, memory usage, power consumption, learning curve,...
According to the specific business requirements of the meteorological wireless sensor network (MWSN), we analyze and summarize the principles and problems of the existing Web real-time communication technology, and put forward the realtime meteorological information publishing platform (RT-MIPP) solution based on WebSocket. We first analyze and classify the observational data of MWSN, and design the...
Large scale ad hoc networks such as Wireless Sensor Networks are more and more deployed to ensure critical missions (such as forest fire detection, intrusion detection, etc). Critical applications require timeliness and reliability because human lives may depend on it. In order to give the strongest possible guaranties, the fulfillment of the timing requirements must be formally verified. In the literature,...
Wireless networked control systems (WNCSs) have been increasingly deployed in industrial applications. As they require timely data packet transmissions, it is difficult to make efficient use of the limited channel resources, particularly in contention based wireless networks in the layered network architecture. Aiming to maintain the WNCSs under critical real-time traffic condition at which the WNCSs...
Due to the stringent energy constraint wireless "s, network management cost for lifetime becomes" "sensor node" "one of the crucial issues in designing wireless sensor networks (WSNs). In such situation, guaranteed network lifetime is more preferred than unpredictable pro-long one. However, despite of its importance and necessity in real world deployment, few research works...
Modern mobile and wearable devices are enabling the realization of so-called ubiquitous computing. This provides citizens the technological means to contribute to urban management by becoming sensors within a smart city. Notwithstanding, the health sector is a very crucial factor for city management, imposing restrictions to the decisions directly or indirectly. The question that arises is given the...
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